Lincoln Service Parts 1 › Lincoln Electric 9SL7956 RECTIFIER HEAT SINK L7956 Lincoln Electric 9SL7956 RECTIFIER HEAT SINK L7956 Sale Price: $149.88 Original Price: $172.36 RECTIFIER HEAT SINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! RECTIFIER HEAT SINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1